Patent · US Active

Decoding audio bitstreams with enhanced spectral band replication metadata in at least one fill element

US10262669B1 · kind B1 · utility

8Cited by

5References

15Claims

0Family size

Assignee

Dolby International AB · IE

Inventors

Lars Villemoes · Stockholm, SE
Heiko Purnhagen · Sundbyberg, SE
Per Ekstrand · Saltsjöbaden, SE

Key dates

Filing date	Dec 3, 2018
Grant date	Apr 16, 2019
Priority date	—
Expiry date	Dec 3, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG10L21/038
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Embodiments relate to an audio processing unit that includes a buffer, bitstream payload deformatter, and a decoding subsystem. The buffer stores at least one block of an encoded audio bitstream. The block includes a fill element that begins with an identifier followed by fill data. The fill data includes at least one flag identifying whether enhanced spectral band replication (eSBR) processing is to be performed on audio content of the block. A corresponding method for decoding an encoded audio bitstream is also provided.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.